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https://dev.mysql.com/doc/refman/5.7/en/sql-prepared-statements.html
Metadata changes to tables or views referred to by prepared statements are detected and cause automatic repreparation of the statement when it is next executed. Using prepared statements with placeholders for parameter values has the following ...
https://dev.mysql.com/doc/refman/5.7/en/mysqlimport.html
Invoke mysqlimport like this: mysqlimport [options] db_name textfile1 [textfile2 ...] For each text file named on the command line, mysqlimport strips any extension from the file name and uses the result to determine the name of the table into which ... The mysqlimport client provides a command-line interface to the LOAD DATA SQL ...
https://dev.mysql.com/doc/refman/5.7/en/partitioning-subpartitions.html
Subpartitioning—also known as composite partitioning—is the further division of each partition in a partitioned table. Consider the following CREATE TABLE statement: CREATE TABLE ts (id INT, purchased DATE) PARTITION BY RANGE( YEAR(purchased) ) ...Each of these partitions—p0, p1, and p2—is further divided into 2 ...
https://dev.mysql.com/doc/refman/5.7/en/performance-schema-consumer-filtering.html
For example, if you do not care about historical event information, disable the history consumers: UPDATE performance_schema.setup_consumers SET ENABLED = 'NO' WHERE NAME LIKE '%history%'; The consumer settings in the setup_consumers table form a ...
https://dev.mysql.com/doc/refman/5.7/en/replication-features-auto-increment.html
Statement-based replication of AUTO_INCREMENT, LAST_INSERT_ID(), and TIMESTAMP values is done correctly, subject to the following exceptions: When using statement-based replication prior to MySQL 5.7.1, AUTO_INCREMENT columns in tables on the ...A ...
https://dev.mysql.com/doc/refman/5.7/en/sys-schema-object-index.html
The following tables list sys schema objects and provide a short description of each one.
https://dev.mysql.com/doc/refman/5.7/en/uninstall-plugin.html
It requires the DELETE privilege for the mysql.plugin system table because it removes the row from that table that registers the plugin. plugin_name must be the name of some plugin that is listed in the mysql.plugin table. The server executes the ...
https://dev.mysql.com/doc/refman/5.7/en/charset-conversion.html
To convert a binary or nonbinary string column to use a particular character set, use ALTER TABLE. Suppose that a table t has a binary column named col1 defined as VARBINARY(50). To remove these bytes, use the TRIM() function: UPDATE t SET col1 = ...For successful conversion to occur, one of the following conditions must apply: If the column has a binary data type (BINARY, VARBINARY, BLOB), all the values that it contains must be encoded using a single character set (the character set you're converting the column ...
https://dev.mysql.com/doc/refman/5.7/en/charset-unicode-conversion.html
The exception is that in table definitions, utf8 is used because MySQL converts instances of utf8mb3 specified in such definitions to utf8, which is an alias for utf8mb3. In terms of table content, conversion from utf8mb3 to utf8mb4 presents no ...
https://dev.mysql.com/doc/refman/5.7/en/connection-access.html
The server performs identity and credentials checking using columns in the user table, accepting the connection only if these conditions are satisfied: The client host name and user name match the Host and User columns in some user table row. If the ... When you attempt to connect to a MySQL server, the server accepts or rejects the connection based on these conditions: Your identity and whether you can verify it by supplying the proper ...